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Full Discussion: cron issue
Operating Systems Linux Red Hat cron issue Post 302299576 by mgb on Friday 20th of March 2009 11:43:54 AM
Old 03-20-2009
Question cron issue
Hello,

Having and issue with a job scheduled in cron. The script:

Code:
#!/bin/bash
2 	
3 	#  Example shell script which can be added to roots cron job to check the
4 	# Embedded Satellite disk space usage. If any table is over 90% usage, send
5 	# a notice to the default email address configured within the Satellite.
6 	
7 	#
8 	# This script is supplied as a working example and is not supported by Red Hat
9 	#
10 	
11 	# Example cron entry:
12 	# 1 */6 * * * /root/check-oracle-space-usage.sh
13 	
14 	PATH=/usr/bin:/bin
15 	export PATH
16 	
17 	reportusage() {
18 	   /sbin/runuser - oracle -c "db-control report"
19 	}
20 	
21 	mailitout() {
22 	   #get Satellite email address
23 	   MAILADDRESS=`grep "traceback_mail" /etc/rhn/rhn.conf | awk '{print $3}'`
24 	
25 	   SUBJECT="Warning - high tablespace usage on Satellite oracle DB"
26 	
27 	   BODY="This is a notice to let you know that you have gone over 90% usage in
28 	one of the Oracle Tablespaces. We recommend to be proactive and increase the
29 	size of the tablespace  before getting to 100% usage. Please consult
30 	the Satellite documentation on using db-control to increase the size or
31 	contact Red Hat Support for assistance."
32 	
33 	   ( echo $BODY; echo ; reportusage ) | mail -s "$SUBJECT" $MAILADDRESS
34 	   exit 0
35 	}
36 	#grab the usage numbers from the db-control report output
37 	NUMBERS=`reportusage | awk '{print $5}'|sed '1d'| sed 's/%//g'`
38 	# run db-control and then use awk and sed to get the % numbers
39 	for num in $NUMBERS
40 	   do
41 	   # if number is over 90% then send warning email
42 	   if [ $num -gt 90 ]
43 	      then mailitout
44 	   fi
45 	done
46 	exit 0

Running this out of /etc/cron.daily and getting this error:

stty: standard input: Inappropriate ioctl for device

I suspect this is due to something not being re-directed to /dev/null.

Any ideas?

Thanks,

mgb
 

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LEARN ABOUT OSF1

uudemon.cleanu

uudemon(4)						     Kernel Interfaces Manual							uudemon(4)

NAME

       uudemon.admin,  uudemon.cleanu,	uudemon.hour,  uudemon.poll  -	Administrative shell scripts for polling remote systems, cleaning up spool
       directories, reporting status to the system administrator, and routine invocations of the uuxqt and uusched daemons

SYNOPSIS

       These shell scripts reside in the following directory:
	  /usr/lib/uucp

DESCRIPTION

       All the scripts can be run from the command line or can be run automatically by the cron daemon. To automatically run the  scripts,  remove
       the comment character (#) from the beginning of the relevant line in the /var/spool/cron/crontabs/uucp file.

       This  script  reports  status  to  the system administrator. It issues the uustat command to find out the status of uucp jobs. It mails the
       results to the uucp login ID. The script may be modified to send mail to any login ID such as the uucp administrative login ID  (uucpa)	or
       root.  This script cleans up the /var/spool/uucp and /var/spool/uucppublic directories by running the uucleanup command. The uucleanup com-
       mand is run with the following parameters: -C7, -D7, X2, -o2, -W1.  This script runs the uusched and uuxqt daemons in the background.  This
       script  polls  the  systems  listed  in	the  /usr/lib/uucp/Poll file.  The uudemon.poll script should be scheduled before the uudemon.hour
       script. This allows uudemon.poll to create any command files before cron runs the uudemon.hour script.

FILES

       Contains the uudemon.admin, uudemon.cleanu, uudemon.hour and uudemon.poll files.  Contains the uucp file.

RELATED INFORMATION

       Commands: cron(8), uucleanup(8), uusched(8), uuxqt(1)

       Files: /usr/lib/uucp delim off

																	uudemon(4)
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